28916198 has 24 divisors (see below), whose sum is σ = 45894576. Its totient is φ = 13662000.

The previous prime is 28916191. The next prime is 28916213. The reversal of 28916198 is 89161982.

It is a super-2 number, since 2×28916198² = 1672293013550408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28916191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159668 + ... + 159848.

It is an arithmetic number, because the mean of its divisors is an integer number (1912274).

Almost surely, 2^28916198 is an apocalyptic number.

28916198 is a deficient number, since it is larger than the sum of its proper divisors (16978378).

28916198 is a wasteful number, since it uses less digits than its factorization.

28916198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 357 counting only the distinct ones).

The product of its digits is 62208, while the sum is 44.

The square root of 28916198 is about 5377.3783575270. The cubic root of 28916198 is about 306.9354587804.

The spelling of 28916198 in words is "twenty-eight million, nine hundred sixteen thousand, one hundred ninety-eight".